Improvement in oenteipuqal pumps



@uiten taire @anni @fitta CARLO FEDERIGI MARTORANA, OF BALTIMORE, MARYLAND.

Letters Patent No, 65,099, dated May 28, 1867.

IMPROVEMENT IN GENTRIFUGAL PUMPS.

r.ro ALL wHoM 1T MAY coNcERN;

Be it known that I C. F. MARTORANA, of Baltimore, inthe county of Baltimore, Aand State 'of Maryland, have invented certain new and useful improvements in Centrifugal Pumps; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying,A drawings, making` part of this specification, and to the letters of reference marked thereon, like letters indicating like parts wherever 'they occur.

To enable others skilled in the art to construct and use my invention, I will proceed to describe it.

My invention consists in the novel construction of a wheel to be used as a pump for raising or expelling water and other fluids or semi-fluids, and also for excavating mud, sand, and similar material, from the beds of streams, marshes, &c.

Figure 1 is a top plan view; and

Figure 2, a vertical section of a scow or boat with my improved apparatus applied thereto.

Figure 3 is a top plan view of a portion of the wheel detached.

The principal part of my apparatus consists of a wheel, W, the form of which is shown in figs. 2 and 8. This wheel is made of a top annular plate or rim, t, having curved buckets, n, attached to its under side, said buckets growing gradually narrower as they descend, and being so curved inward as to unite at the bottom' and centre, where they are firmly attached to a circular plate, u, thus giving to the exterior'of the wheel the form rcpresentedin iig. 2. The buckets or wings n are set so as to overlap each other, as representedin iig. 3, and have their outer edges-turned or curved slightly inaI reverse direction, to cause them to take hold more readily on'the material to be raised. The wheel thus constructed is secured to a shaft, o, as represented in fig. 2, b y means of the plate u, and by arms or braces connecting the rim t to the shaft. It is theninserted in a case or tube, T, of any desired length, and yprovided with suitable mechanism to impart to it a rapid rotary motion. The tube T being inserted in the fluid deep enough to immerse tb'e Wheel W, and a rotary motion being imparted to the latter, the curved wings or buckets it will force the fluid inward and upward, causing it to iiow out at thc top of the tube, the wheel acting both as a lifting and forcing pump. Where it is desired to use the device solely as a pump for raisingfluids to a considerable distance, a long tube or case will be used,and several of the wheelsfW attached to the shaft o at different heights in the tube, and thus the labor of raising the fluid will be'divided among the wheels, each one lifting it a certain distance, when it will be taken by the next, and by increasing the number of wheels according to the length of the shaft, the fluid may be raised any desired distance.

In the drawings I have represented my' device applied to aboat intended to be used for excavating mud, sand, and other debris or sediment from the'bed of streams, marshes, channels, canals, docks, and similar places. I-I represents the boat, which may be'made of any desired sizeand form. In this case, B represents the deck` and A a compartment in the body of the vessel, and R an air-chamber in the bottom or lower portion to render it more buoyant when loaded. The tube or case T, which encloses the wheel, is located in the bottom of the boat at the centre, and extends through the bottom up into the compartment A, and has thc wheel W placed in it, as previously described, and as shown in fig. 2. The shafto isprovided at its upper end with a bevel-gear, G, which engages with a similar wheel, E, on a horizontal shaft, D, which may be operated or driven by steam or any other suitable power. The boat being floated to the place where it is desired to operate, is sunkso as to rest on bed, when, the wheel being setin motion, will suck or draw 'the mud and sand, with the Water and other soft or yielding material, up the tube T into the compartment A. The top of thetube T is provided with hinged covers, d, which can be shut down and close the tube, thus preventing thc material from escaping when the wheel is at'4 rest. In order to hold these covers or lids open when the wheel is in operation, a lever, h, is pivoted to the side of the tube J, and connected by a link, Z, to the lid ,the opposite end ofsaid lever tbeing connected to a rod, e, which extends up through the deck B, and is held up by a set-screw, a, in a bar` I, as shown in iigs. 1 and 2. This bar I is curved, so as to pass around the tube J and protrude at each side, as shown in iig 1, and is held in place by a pivoted rod, b, which has an arm protruding from one side, at proper height to engage over theitop of bar I and hold it, as representedin g. 2. Alftu'be, J, extends from the bottom of the compartment A up through the^deck, surroundingthe shaft o' of the wheel W, as shown in fig. 2. It is obvious that by arranging the wheel W so that it can be lowered below the bottom of the vessel, itcan thus be umile to take hold more readily upon sand, mud, undsimilar material which will not realdily flow up into the tube T when the boat rests on it. When it is desired to use the apparatus in deep water, the deck B is made tight by n plate C, which is bolted securely over the opening through which the Wheel is inserted through lthe deck, and packed water-tight. In such case the bont will be submerged until it rests upon the bed, and after beingloaded by pumping the material into the compartment A, it will be raised by pumping thewater out of -the compartment R, and filling the latter with air, when it con bc moved to any desired locality and emptied of its contents. This pump is specially adapted, also; for clering vessels of water, either by raising` it and forcing it out above, or by forcing it out through the bottom, the motion of thelwheel in the latter case being reversed for that purpose. i

Having thus described my invention, what I claim is- 1. The pump consisting of the wheel W, constructed es described, and arranged to operate as and for the purpose herein set forth.

2. I claim the arrangement of the'pump-wheol W, and tube or case T, with the valves UZ, in the bottom of a limiting platform o1' vessel, substantiallyas and for the purpose set forth.

CARLO FEDERICI MARTORANA.

Witnesses:

W. C. Denen, Win. S. LcUeHBonoUGH. 

